31068012066 has 32 divisors (see below), whose sum is σ = 76475107968. Its totient is φ = 8193761280.

The previous prime is 31068011987. The next prime is 31068012077. The reversal of 31068012066 is 66021086013.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28450015 + ... + 28451106.

It is an arithmetic number, because the mean of its divisors is an integer number (2389847124).

Almost surely, 2^31068012066 is an apocalyptic number.

31068012066 is an abundant number, since it is smaller than the sum of its proper divisors (45407095902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31068012066 is a wasteful number, since it uses less digits than its factorization.

31068012066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56901146.

The product of its (nonzero) digits is 10368, while the sum is 33.

Adding to 31068012066 its reverse (66021086013), we get a palindrome (97089098079).

The spelling of 31068012066 in words is "thirty-one billion, sixty-eight million, twelve thousand, sixty-six".